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首页> 外文期刊>Structural Engineering and Mechanics >Wave load resistance of high strength concrete slender column subjected to eccentric compression
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Wave load resistance of high strength concrete slender column subjected to eccentric compression

机译：偏心受压高强度混凝土细长柱的波浪荷载抗力

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摘要

A computer based iterative numerical procedure has been developed to analyse reinforced high strength concrete columns subjected to horizontal wave loads and eccentric vertical load by taking the material, geometrical and wave load non-linearity into account. The behaviour of the column has been assumed, to be represented by Moment-Thrust-Curvature relationship of the column cross-section. The formulated computer program predicts horizontal load versus deflection behaviour of a column up to failure. The developed numerical model has been applied to analyse several column specimens of various slenderness, structural properties and axial load ratios, tested by other researchers. The predicted values are having a better agreement with experimental results. A simplified user friendly hydrodynamic load model has been developed based on Morison equation supplemented with a wave slap term to predict the high frequency non-linear impulsive hydrodynamic loads arising from steep waves, known as ringing loads. A computer program has been formulated based on the model to obtain the wave loads and non-dimensional wave load coefficients for all discretised nodes, along the length of column from instantaneous free water surface to bottom of the column at mud level. The columns of same size and material properties but having different slenderness ratio are analysed by the developed numerical procedure for the simulated wave loads under various vertical thrust. This paper discusses the results obtained in detail and effect of slenderness in resisting wave loads under various vertical thrust.
机译：已经开发了一种基于计算机的迭代数值程序，通过考虑材料，几何和波浪荷载的非线性来分析承受水平波浪荷载和偏心垂直荷载的钢筋高强度混凝土柱。假定圆柱的行为由圆柱截面的矩-推力-曲率关系表示。制定的计算机程序可以预测直至失效的色谱柱的水平载荷与挠度的关系。该开发的数值模型已被用于分析多个细长，结构特性和轴向载荷比的圆柱试样，并由其他研究人员进行了测试。预测值与实验结果具有更好的一致性。已经基于Morison方程开发了简化的用户友好型水动力载荷模型，并附加了一个波拍项以预测由陡波引起的高频非线性脉冲水动力载荷，称为振铃载荷。在该模型的基础上，编制了一个计算机程序，以获得沿离散长度从瞬时自由水面到柱底处泥浆高度的所有离散节点的波载荷和无量纲波载荷系数。通过开发的数值程序分析了在各种垂直推力作用下的波浪载荷，分析了具有相同尺寸和材料特性但细长比不同的圆柱。本文详细讨论了获得的结果以及细长性在各种垂直推力下抵抗波浪载荷的影响。

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